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H. s. HonNBEcK SHEET ADJUSTBR FOR PRINTING PRESSES Original Fild Dec. 8,1921 l WHW dmL ,d

Reissued Oct. 20, 1925.

UNITEDv STATES PA'raNry HENRY s. HoRNBncx, or R1 Re. v16,188

M '.ER COMPANY, 0F PITTSBURGH, PENNSYLVANIA, A,CORPORATION 0F PENNSYL-vaina.

original No. 1,479,914

SHEET ADJUSTER FOR PRINTING PRESSES.

ated January 8, r1924, Serial No. 520,909, filed December 8, 1921.Application for reissue 'med July 14, 1925. serial No. 43,634.

To all whom '15 may concern.' v

Be it known that I, HENRY S. HOR'NBECK, a citizen of the United States,residing at Riverhead, in the 5 State of New York,

county of Sulfolk and have invented new and useful Improvements in SheetAdjusters for Printing'Pressea of which the following is aspecification.

yThis invention'has for its object to 'provide an improved device,operated by the vmovement of the press itself, for the purpose of movinginto'accur'ately registered position each sheet of paper when it hasbeen placed by hand or such a sheet is upon` the platen of a placed uponthe platen it by an printing press.

automatic feeder,

When

comes to rest by gravity against the bottom stops; if by chance it restsagainst` the side does not reach the s necessary that the placed on theplaten, ybottom stops, be moved ,with an easy motion no further movementof the sheet is necessary, but since the sheet is thrown toward the sidestop it lgenerally rebounds slightly therefrom and sometimes generallyide stop. It is therefore sheet,`after it has been resting against thetoward the side stop which will cause no rebound and by a device whichhas a range of movement `greater displacement of the which movesthe-sheet should also be of such y than the maximum sheet. The device acharacter that it will move the| sheet only so far as may requiremnesses and different accordance with the "finger and thumb 'j @fryingthe Sheet;

4fed on the platen of the press,

permit it to be placed in whatever position maybe required, a movablereceivesthe ,sheet of be necessary to place it in contactwith the sidetendency to cause the V *l sheet moving device or sheet adjuster whichforms thesubject of this invention has devised `with a view to themeeting of ents in a satisfactory manner, the

stop and Without any sheet to buckle. The

been these device being so'constructed that it can be adapted readily tosheets of diferent thickdegrees of stiffness. In invention there ismountby means which paper, as between the of a-hand and with afreadilyadjustable pressure which is suited to the character of thesheet, and is then, atv .4 the propertime in the'operation of the press,movedv `in the direction 'of the side stop,

with vuntil its movestood, is capable of relative movement of .the

shifter which i, secured to the ment is resisted vby contact of its edgewith the side stop and continuing its own movement thereafter whilepermitting the sheet of paper to remain in position without beingbuckled. The invention will be more fully explained hereinafter withreference to the' accompanying drawing in which it is illustrated and inWhich-` Figure l is a view u in elevation showing a portion of theplaten of the press with its `stops and the improved shifter in positionthereon and with a portion of the `usual gripper bar which carries'theusual gripper arms, the shifter being shown in `itsfnormal position ofrest.`

Figure 2 is a similar view showing the shifter moved through its fullrange of movement with the sheet in position against the stops.

Figure 3 is a viewin end elevation as seen from the right hand in Figure2.'

Figurel 4 is a detail view of the holder which supports the shifter.

OFFICE f VERHEAD, lNEW YORK, `AssIGNoR To MILLERsAW-TRIM- Figure5 is adetail view insection on the plane indicated of Figure l4.' e

Figure 6 is a! detail vievvfcf the shifter removed from its suppor .p

Figure 7 is a view in section on the plane indicated by the broken line7`7 of Figure.

The improved shifter, as will be underapplication to presses ofdiiferent constructions. It is shown herein as applied to an ordinaryplaten a which has stretched upon it as usual a fabric sheet I) of somesuitable material, as cloth or paper andas having in pivoted relation onthe broken line. 5:-5

therewlth a gripper baro which carries the usual gripper arms whichserveto holdl the printed sheet against the platen as it `moves away.from.the typey after the impression has y, been made'.v `It is notnecessary to show or describe herein the'means whichthe p platen randthe gripper bar is eli'ected,since such means are common in the art, itbeing understood that a swinging 'movement with rethe one has spect tothe other abouttheir common axis `which inthis case is indicated. at o.`BottomV stops fd against ,which 'the lower edge of the paper-sheet erests. by gravity, are platen in Aproper position.

Asl shown, each stop is provided with a single sharpened. and bentlinger` or prong d which is slipped into the platen sheet b to securethe stop in position. There is also secured to the platen or to itssheet t), 1n any suitable manner, a side stop f 'against which the edgeof the paper e must rest when the sheet is in properposition and againstwhich it is to be `moved by the shifter. v The shifter which forms "thesubject of this invention comprises two opposed iiners g and` h whichare adapted to receive etween them the edge of the sheet of paper, thefinger g being curved away from the laten and rounded on its contactside while the finger h is bent toward the platen, as indicated at h.The two fingers are pressed together with an adjusta le and yieldingpressure as by a thumb screw i, a yielding cushion vl being interposedbetween the two so that the V"two fingers'can be Y, pressed. more orless tightly' together andthe ressure Vwith which the paper sheet isheld between them be regulated a'ccording to lthe thicknessand-stiffness oit the paper which is being printed. f The two iingersare pivoted together, as by a pivot lo, upon a base kor holder VZ whichis provided with pointed and bent prongs Z by which the holder can besecured in position on the platen sheet b. A spring ml is secured to thebase or holder Z -for coi-operation with the shifter -for the purpose ofreturning it to normal positionrwlheny it is released b the o eratingmeans hereinaiterclescribe The s ifter is valso provided with 'anoperating arm 7i? which is connected, as by a cord n, with an adjustableclamp "03 mounted on the l'grip'per bar o.

In operation. the see't of paper, against the vbottom stops either byhand or otherwise, is received hy t fe shifter between theV lingers .gand i.' 'with @pressure which is so regulatedfas to besuliicient to movethe sheet of paper when such movement is not resistedby va stop. As therelative positions ot the platen and gripper bar when fed change in theoperation of ythe press, in the usual manner, the r'cord fn. isvtightened and the shifter is moved from the normal position showninFigure 1 to one side, as shown in Figure 2,*carrrying the "sheet ofpaper to onesi'de until its movement is resiste'dby thelside stop Assoon as 'the-movement of the sheet o paper isresistedby the side stopthe shifter `slips with reference to the sheet of4 paper, leavingthesheet ol paper in position against the ysfide stopfwitliout any rebound.Obviously the sheet paper, after being printed, ymight be withdrawnreadily from uthe shifter, whatever its 'movement orpo`sition, withoutdanger of "tearing, but when 'the shi'iter vhas arswing'i-ng movement,as described, the shifter i'tsel'f, as lit completes its movement, willswing clear of adapted to receive respect thereto, for registering `a inadjusted positions 'presses comprising 'a base, a sheet-enga ing memberpivotallyassociated with :said ase the lower edge of the sheet of paper,as it rests upon the bottom stops, as shown in Figure 2.

It will be seen that the sheet of paper to be adjusted and printed isreceived by the shifter with. a yielding pressure adapted to the qualityof the paper, is moved gently toward =the side stop and comes to restagainst the same without rebounding and that-when the sheet hasY come torest in its proper position ythe shifter continues its movementregardless of the osition of the sheet when engaged by the sliifter,without any tendency to cause the sheet tobuckle. In this position thesheet is secured byV the grippers and is held during the making of theimpression.

It will be understood that changes in details of construction andlerrangement can be made to suit 'dinerent conditmns `of'ilse and thatvexcept as pointed out in the accompanying claims, the invention is notlimited to the articular construction shown and describe herein.

I claim as my invention:

1. .A sheet adjuster for printing presses comprising movable and opposedfingers between them with a pressure the sheet to be printed, a yieldingcushion interposed between the fingers, means to press the lingerstogether, and means to move the in'gers'to carry the sheet with themuntil its movement 1s resisted. y

2. A sheet adjuster for platen printing presses comprising 'a base, asheet-engaging vmember associated with said base sov as to havelengthwise-,and sidewi'semoveme'nt with sheet endwise and sidewise.;means Vforsecuring said base on the platen VAin lengthwise or laterallyof the latter, and means for actuating said sheetsengaging member. Y

3. A sheet adjuster 'presses comprising a yielding for platen printingbase; a sheet-engaging member associated with said base `so as to havelengthwise and sidewise movement with respect thereto, for registering asheet end- 'presses comprising a. base, a sheet-'enz aging.,

member pivotallyassociated with 'base for registering a sheet endwiseand 'sidewise, means for' securing said 'base on the platen lengthwiseor laterally of 'the latter, and. means i sheet-'engaging member.

t5. A sheet adjuster for platen printing adjusted 'positionsy forlactuating said y for registering a sheet endwise and sidewise, meansfor securing said base onA the platen in adjusted of the latter,

positions lengthwise or laterally and connection means between` saidsheet-engaging member and the gripperbar of the engaging member.

6. A sheet adjuster for platen for actuating said sheetplaten printingpresses comprising a base, a sheet-engaging member pivotallj'Tassociated with said base for registering a sheet endwise and sidewise,

means for securing said base in sitions on the platen, between saidadjusted poand connection means sheet-engaging member and thegripper-bar of the platen for actuating said sheet enga ing member, saidconnection means being a justable to accord with the position of saidbase on the platen.

7. A sheet adjuster for presses comprising a base,

platen printing a sheet-engaging member pivotally associated with saidbase for registering a sheet endwise and sidewise, means for securingsaid base in adjusted positions on the platen, and cord-like connectlonmeans between said sheet-engaging member and the gripper bar of theplaten for actuating said sheet-engaging member.

8. A sheet adjuster for platen printing presses comprising a base formedwith a portion for penetrating the tympan sheet of the platen, therebyto permit said base to be secured in any desired position on the platen;a sheet-engaging member associated with said base so as to havelengthwise and sidewise movement with respect thereto for registering asheet endwise and sidewise; and means for actuating said sheet-engagingmember. v

